I-shaped steel beam hoisting structure

Abstract

The utility model relates to an I-shaped steel beam hoisting structure which solves the problems that an existing I-shaped steel beam hoisting clamp is easy to slip due to a simple fixing mode, or is complex to install and inconvenient to disassemble and assemble. Hoisting clamps are arranged on the left side edge, close to one end, of an upper beam plate and the right side edge, close to the other end, of the upper beam plate correspondingly, each hoisting clamp comprises a connecting plate arranged above the upper beam plate, a mounting hole is formed in the middle of each connecting plate and aligned to the upper beam plate, a first connecting bolt is arranged in each mounting hole in a penetrating mode, and the first connecting bolts are arranged in a penetrating mode from top to bottom; a downward extending plate is arranged on the outer side edge of the connecting plate, the lower end of the downward extending plate extends inwards to form a hook, the hook is attached to the lower surface of the upper beam plate, an upward extending plate is arranged on the inner side edge of the connecting plate, and a hanging ring is connected to the upper end of the upward extending plate. According to the utility model, the lifting clamp is locked inwards under the action of a lever, is not easy to loosen and slip, and is simple in structure and very convenient and quick to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure buildings, and relates to a hoisting structure for I-shaped steel beams. Background Technique

[0002] In steel structure buildings, I-shaped steel beams are a common beam structure. The hoisting of I-shaped steel beams generally uses a crane for hoisting. Before hoisting, a hoisting fixture is fixed on the I-shaped steel beam, and then the lower end of the hoisting cable is fixed on the hoisting fixture for hoisting. Among the existing hoisting fixtures, some lack the fixation of the fixture and there is a possibility of slipping, such as a clamp for hoisting H-shaped steel beams with the publication number of CN209481043U; some have bolt fixation, but the hoisting point of the fixture and the fixture itself cannot form a locking, and there is also a possibility of slipping, such as a detachable and reusable steel beam hoisting fastener with the publication number of CN215048056U; and some are complex to use, not only need to clamp the two sides of the I-shaped steel beam relatively, but also lock the two side fixtures together, and the installation and disassembly processes are relatively complex. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems that the existing hoisting fixtures or fixing methods for I-shaped steel beams are simple and easy to slip, or the installation is relatively complex and inconvenient to disassemble and assemble, and to provide a hoisting structure for I-shaped steel beams. The hoisting point is located inside and the hook point is located outside, and the two form a locking effect of lever clamping. The installation structure is simple, but it has a self-locking effect to prevent falling off, and it is especially suitable for hoisting I-shaped steel beams with a beam weight not exceeding 2 tons.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a hoisting structure for I-shaped steel beams, including an I-shaped beam body. The beam body includes a long strip-shaped upper beam plate and a lower beam plate. A web is vertically arranged between the midlines of the upper beam plate and the lower beam plate. Hoisting fixtures are respectively arranged on the left side of one end and the right side of the other end of the upper beam plate. The hoisting fixture includes a connecting plate arranged above the upper beam plate. An installation hole is opened in the middle of the connecting plate and aligned with the upper beam plate, and a first connecting bolt is passed through. The first connecting bolt passes through from top to bottom, and a first nut is screwed at the lower end of the first connecting bolt. A downward extending plate is arranged on the outer side of the connecting plate, and the lower end of the downward extending plate extends inwards to form a hook. The hook fits the lower surface of the upper beam plate. An upward extending plate is arranged on the inner side of the connecting plate, and a lifting ring is connected to the upper end of the upward extending plate. A hoisting hole is opened at the upper end of the upward extending plate. The lifting ring is arranged across both sides of the upward extending plate in an inverted U shape, and holes are opened at the ends of the two arms of the lifting ring and are connected with the hoisting hole by passing through a second connecting bolt.

[0005] This device is applicable to the hoisting of I-beams with relatively small self-weights. Mounting holes are respectively opened on both sides of the upper beam plate of the I-beam, and the two mounting holes are respectively opened near the two ends of the beam body. There is no need to symmetrically clamp both sides of the beam body at the same position. The structure is simple, the installation is convenient, and the influence on the structure of the beam body is small. After the connecting plate of the hoisting clamp and the upper beam plate are fixed by passing through the first connecting bolt, a lever structure is formed. The upper extension plate for hoisting is located inside the first connecting bolt, while the hook for hooking the beam body is located outside the first bolt. During hoisting, the pulling force at the hoisting point uses the lever action to lock the hook inward, ensuring that the hoisting clamp can tightly hold the edge of the upper beam plate, is not prone to loosening and slipping, is safe and reliable. Moreover, this device only uses the first connecting bolt to complete the assembly of the clamp and the beam body, and the installation and disassembly are very convenient and fast.

[0006] Preferably, the overlapping length between the hook and the lower surface of the upper beam plate is not less than 20 mm. The sufficient overlapping length ensures the force-bearing strength of the hook.

[0007] Preferably, the inner side edge of the hook is located outside the first connecting bolt.

[0008] Preferably, the upper extension plate, the connecting plate, the lower extension plate and the hook are welded with steel plates above 14 mm.

[0009] Preferably, the length of the first connecting bolt above the first nut is not less than the height of the lower extension plate. The position of the connecting plate is higher than the upper surface of the upper beam plate and has a certain gap. The first connecting bolt has enough length to ensure that the hook can overlap on the lower surface of the upper beam plate to bear force.

[0010] Preferably, the inner side edge of the hook extends to the inside of the first connecting bolt, and the lower end of the first connecting bolt passes through the plate surface of the hook. The position of the connecting plate is higher than the upper surface of the upper beam plate and has a certain gap. The hook can overlap on the lower surface of the upper beam plate to bear force.

[0011] Preferably, the upper extension plate, the connecting plate, the lower extension plate and the hook are welded or bent with 8-10 mm steel plates.

[0012] Preferably, the first connecting bolt and the first nut are tightened.

[0013] Preferably, the first connecting bolt uses a bolt with a diameter above 8 mm, and the diameter of the mounting hole is not less than the diameter of the first connecting bolt.

[0014] Preferably, the self-weight of the beam body does not exceed 2 tons.

[0015] The pulling force of the lifting point of the utility model utilizes the lever principle to lock the hook inward, ensuring that the lifting fixture can tightly hold the edge of the upper beam plate, not easily loosen and slip off, being safe and reliable. Moreover, this device only uses the first connecting bolt to complete the assembly of the fixture and the beam body, and the installation and disassembly are very convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a schematic structural diagram of the present utility model.

[0018] Figure 2 is a schematic diagram of the first lifting fixture of the present utility model.

[0019] Figure 3 is a schematic diagram of the second lifting fixture of the present utility model.

[0020] In the figure: 1. Beam body, 2. Lifting fixture, 3. Upper beam plate, 4. Lower beam plate, 5. Web, 6. Connecting plate, 7. Upper extension plate, 8. Suspension ring, 9. Second connecting bolt, 10. Lower extension plate, 11. Hook, 12. First connecting bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0022] Embodiment 1: A lifting structure for an I-shaped steel beam, as Figure 1 、 2 shown. This structure includes an I-shaped beam body 1 with a self-weight of the beam body not exceeding 2 tons. The beam body 1 includes a long strip-shaped upper beam plate 3 and a lower beam plate 4, and a web 5 is vertically arranged between the midlines of the upper beam plate 3 and the lower beam plate 4. Lifting fixtures 2 are respectively arranged on the left side of one end and the right side of the other end of the upper beam plate 2. The lifting fixture 2 includes a connecting plate 6 arranged above the upper beam plate 3. An installation hole is opened in the middle of the connecting plate and aligned with the upper beam plate, and a first connecting bolt 12 is passed through. The first connecting bolt 12 passes through from top to bottom, and a first nut is screwed at the lower end of the first connecting bolt. A downward lower extension plate 10 is arranged on the outer side of the connecting plate 7, and the lower end of the lower extension plate 10 extends inward to form a hook 11. The connecting plate 6 is higher than the upper surface of the upper beam plate 3, the hook 11 fits the lower surface of the upper beam plate 3, and the length of the first connecting bolt 12 above the first nut is not less than the height of the lower extension plate 10. The first connecting bolt uses an 8mm diameter bolt, and the aperture of the installation hole is 10mm. An upward upper extension plate 7 is arranged on the inner side of the connecting plate, a lifting hole is opened in the upper extension plate, and a suspension ring 8 is connected to the upper extension plate. The suspension ring 8 is arranged in an inverted U shape across both sides of the upper extension plate 7, and holes are opened at the ends of the two arms of the suspension ring and are connected to the lifting hole by passing through with a second connecting bolt 9.

[0023] The upper extension plate, connecting plate, lower extension plate and hook are welded with 14 mm steel plates. The inner side of the hook 11 is located outside the first connecting bolt 12. The overlapping length between the hook and the lower surface of the upper beam plate is not less than 20 mm.

[0024] Embodiment 2: A hoisting structure for an I-shaped steel beam, as Figure 1 , 3 shown. This structure includes an I-shaped beam body 1 with a self-weight of the beam body not exceeding 2 tons. The beam body 1 includes a long strip-shaped upper beam plate 3 and a lower beam plate 4, and a web 5 is vertically arranged between the midlines of the upper beam plate 3 and the lower beam plate 4. Hoisting fixtures 2 are respectively arranged on the left side near one end and the right side near the other end of the upper beam plate 2. The hoisting fixture 2 includes a connecting plate 6 arranged above the upper beam plate 3. An installation hole is provided in the middle of the connecting plate and is penetrated by a first connecting bolt 12. The first connecting bolt 12 penetrates from top to bottom, and a first nut is screwed at the lower end of the first connecting bolt. A downward lower extension plate 10 is arranged on the outer side of the connecting plate 7, and the lower end of the lower extension plate 10 extends inwards to form a hook 11. The connecting plate 6 is higher than the upper surface of the upper beam plate 3, and the hook 11 fits the lower surface of the upper beam plate 3. An upward upper extension plate 7 is arranged on the inner side of the connecting plate. A hoisting hole is provided in the upper extension plate, and a lifting ring 8 is connected to the upper extension plate. The lifting ring 8 is arranged across both sides of the upper extension plate 7 in an inverted U shape, and holes are opened at the ends of the two arms of the lifting ring and are connected to the hoisting hole by a second connecting bolt 9.

[0025] The upper extension plate, connecting plate, lower extension plate and hook are welded with 8 - 10 mm steel plates. The inner side of the hook 11 is located outside the first connecting bolt 12. The inner side of the hook 11 extends to the inner side of the first connecting bolt 12, and the lower end of the first connecting bolt 12 penetrates through the plate surface of the hook 11. The first connecting bolt and the first nut are tightened. The first connecting bolt is an 8 mm diameter bolt, and the aperture of the installation hole is 10 mm.

Claims

1. An I-beam lifting structure, comprising an I-shaped beam body, wherein the beam body comprises an upper beam plate and a lower beam plate in a long strip shape, and a web plate is vertically arranged between the center lines of the upper beam plate and the lower beam plate, and characterized in that: The left side of the upper beam plate near one end and the right side near the other end are respectively provided with a lifting clamp, and the lifting clamp includes a connecting plate arranged above the upper beam plate, a mounting hole is opened in the middle part of the connecting plate aligned with the upper beam plate and is penetrated by a first connecting bolt, the first connecting bolt is penetrated from top to bottom, and a first nut is screwed on the lower end of the first connecting bolt, a downward lower extension plate is arranged on the outer side of the connecting plate, and the lower end of the lower extension plate extends inward to form a hook, and the hook is attached to the lower surface of the upper beam plate, and an upward upper extension plate is arranged on the inner side of the connecting plate, a lifting ring is connected to the upper end of the upper extension plate, and a lifting hole is opened on the upper end of the upper extension plate, the lifting ring is in an inverted U shape and straddles both sides of the upper extension plate, and holes are opened at the ends of the two arms of the lifting ring and are connected to the lifting holes by passing through the second connecting bolt.

2. The I-beam hoisting structure according to claim 1, characterized in that: The overlapping length between the hook and the lower surface of the upper beam plate is not less than 20 mm.

3. An I-beam hoisting structure according to claim 1 or 2, characterized in that: The inner side edge of the hook is located outside the first connecting bolt.

4. The I-beam hoisting structure according to claim 3 is characterized in that: The upper extension plate, the connecting plate, the lower extension plate and the hook are welded with steel plates with a diameter of 14 mm or more.

5. The I-beam hoisting structure according to claim 3 is characterized in that: The length of the first connecting bolt above the first nut is not less than the height of the lower extension plate.

6. The I-beam hoisting structure according to claim 1 or 2, characterized in that: The inner side edge of the hook extends to the inner side of the first connecting bolt, and the lower end of the first connecting bolt passes through the plate surface of the hook.

7. The I-beam hoisting structure according to claim 6, characterized in that: The upper extension plate, the connecting plate, the lower extension plate and the hook are welded or bent using 8-10 mm steel plates.

8. The I-beam hoisting structure according to claim 6, characterized in that: The first connecting bolt and the first nut are tightened.

9. The I-beam hoisting structure according to claim 1 or 2, characterized in that: The first connecting bolt is a bolt with a diameter of more than 8 mm, and the diameter of the mounting hole is not less than the diameter of the first connecting bolt.

10. An I-beam hoisting structure according to claim 1 or 2, characterized in that: The deadweight of the beam does not exceed 2 tons.

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